How to compute load of the sensor is an important research topic of load balancing based intrusion detection approaches. This system based on grey theory. It can provide reliable and scientific analysis for the sensor load of parallel intrusion detection, and it also can provide load prediction. The system is based on hierarchy structure. Both flow-based dynamic load balancing algorithm and round robin algorithm are used. It is scalable and implements dynamic load balancing well, and better solves the problem of high rate of false positive and false negative of intrusion detection system for h...